<!-- subpkg_medicine/payment/index.vue -->
<script lang="ts" setup>
import { addressListApi, createOrderApi, preOrderApi } from "@/apis/payment";
import { orderPayApi } from "@/apis/user";
import type { Address, OrderPre } from "@/types/order";
import { ref } from "vue";

// 1. 收货地址信息
const addressInfo = ref({} as Address);
// 用户收货地址
const getAddressList = async () => {
  // 地址列表接口
  const data = await addressListApi();
  // 渲染地址列表数据
  addressInfo.value = data[0];
};
// 获取收货地址列表
getAddressList();

// 2. 预定单信息
const props = defineProps<{ id: string }>();
// 预付订单信息
const preOrderInfo = ref({} as OrderPre);
// 药品预付订单
const getPreOrder = async () => {
  if (!props.id) return;
  // 预付订单接口
  const data = await preOrderApi(props.id);
  // 渲染预付订单信息
  preOrderInfo.value = data;
};
getPreOrder();
console.log("预付订单信息", preOrderInfo);

// 3. 待支付订单ID
const orderId = ref("");
// 支付渠道组件实例
const paymentRef = ref();

// 选择支付渠道
const onPaymentButtonClick = async () => {
  if (orderId.value === "") {
    // 生成待支付订单接口
    const data = await createOrderApi(props.id, addressInfo.value.id);
    // 传递订单ID
    orderId.value = data.id;
  }
  paymentRef.value.open();
};

// 支付渠道确认支付
const onPaymentConfirm = async (index: number) => {
  if (index === 0) return uni.showToast({ title: "暂不支持微信支付!" });
  // 调用后端提供的支付接口
  const data = await orderPayApi({
    orderId: orderId.value,
    paymentMethod: index.toString(),
    payCallback: "http://localhost:5173/#/subpkg_medicine/pay_result/index",
  });
  // 支付宝支付页面
  window.location.href = data.payUrl;
};

// 关闭支付渠道弹层
const onPaymentClose = () => {
  paymentRef.value.close();
};
</script>

<template>
  <scroll-page background-color="#f6f6f6">
    <view class="medicine-page">
      <view class="page-header">
        <view class="order-shippment">
          <view class="region">
            <uni-icons size="16" color="#FF7702" type="location-filled" />
            {{ addressInfo.city }} {{ addressInfo.county }}
          </view>
          <view class="detail">{{ addressInfo.addressDetail }}</view>
          <view class="receiver">
            {{ addressInfo.receiver }} {{ addressInfo.mobile }}</view
          >
        </view>
      </view>

      <view class="order-shop">
        优医药房
        <text class="alt">优医质保 假一赔十</text>
      </view>
      <!-- 药品列表 -->
      <view class="medicine-list">
        <view
          class="medicine-list-item"
          v-for="medicine in preOrderInfo.medicines"
          :key="medicine.id"
        >
          <image
            class="medicine-cover"
            src="/static/uploads/medicine-1.jpg"
            mode="aspectFill"
          />
          <view class="medicine-info">
            <text class="name">'{{ medicine.name }}'</text>
            <text :class="{ symbol: medicine.prescriptionFlag === '1' }">
              {{ medicine.specs }}
            </text>
            <text class="price">¥{{ medicine.amount }}</text>
          </view>
          <view class="quantity">x{{ medicine.quantity }}</view>
          <view class="guide">用法用量：{{ medicine.usageDosag }}</view>
        </view>
      </view>

      <!-- 订单信息 -->
      <view class="order-info">
        <uni-list :border="false">
          <uni-list-item
            title="药品金额"
            :right-text="'¥' + preOrderInfo.payment"
          />
          <uni-list-item
            title="运费"
            :right-text="'¥' + preOrderInfo.expressFee"
          />
          <uni-list-item
            title="优惠券"
            show-arrow
            :right-text="'-¥' + preOrderInfo.couponDeduction"
          />
          <uni-list-item
            title="实付款"
            :right-text="'¥' + preOrderInfo.actualPayment"
          />
        </uni-list>
      </view>

      <!-- 底部 -->
      <view class="toolbar">
        <view class="total-amount">
          需付款: <text class="number">¥{{ preOrderInfo.actualPayment }}</text>
        </view>
        <view class="buttons">
          <button class="uni-button" @click="onPaymentButtonClick">
            立即支付
          </button>
        </view>
      </view>
    </view>
  </scroll-page>
  <!-- 支付渠道 -->
  <custom-payment
    @close="onPaymentClose"
    @confirm="onPaymentConfirm"
    :amount="preOrderInfo.actualPayment"
    :order-id="orderId"
    ref="paymentRef"
  />
</template>

<style lang="scss">
@import "./index.scss";
</style>
